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Finding the Fourth Proportional to 574,383.80, 861,575.70 and 322,441.40

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Solution

The fourth proportional to 574,383.80, 861,575.70 and 322,441.40 is: 483,662.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,383.80 : 861,575.70 = 322,441.40 : x
  2. Step 2: Convert to fraction form
    574,383.80/861,575.70 = 322,441.40/x
  3. Step 3: Cross multiply
    574,383.80x = 861,575.70 × 322,441.40
  4. Step 4: Simplify right side
    574,383.80x = 277,807,674,913.98
  5. Step 5: Solve for x
    x = 277,807,674,913.98/574,383.80
  6. Step 6: Final answer
    x = 483,662.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.